Halogeometricum borinquense gen. nov., sp. nov., a novel halophilic archaeon from Puerto Rico
Montalvo, R., R.H. Vreeland, A. Oren, M. Kessel, C. Betancourt and J. López. 1998. Int. J. Syst. Bacteriol. 1998. 48: 1305 – 1312.
Abstract
A novel extremely halophilic archaeon was isolated from the solar salterns of Cabo Rojo, Puerto Rico. The organism is very pleomorphic, motile and requires at least 8% (w/v) NaCl to grow. Polar lipid composition revealed the presence of a novel non-sulfate-containing glycolipid and the absence of the glycerol diether analogue of phosphatidylglycerosulfate. The GMC content of the DNA is 59 mol%. On the basis of 16S rRNA sequence data, the new isolate cannot be classified in one of the recognized genera, but occupies a position that is distantly related to the genus Haloferax. All these features justify the creation of a new genus and a new species for the family Halobacteriaceae, order Halobacteriales. The name Halogeometricum borinquense gen. nov., sp. nov. is proposed. The type strain is ATCC 700274T.
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